*/
#include <common.h>
+#include <spi.h>
#include <spi_flash.h>
+#include <errno.h>
#include <spl.h>
+#ifdef CONFIG_SPL_OS_BOOT
+/*
+ * Load the kernel, check for a valid header we can parse, and if found load
+ * the kernel and then device tree.
+ */
+static int spi_load_image_os(struct spi_flash *flash,
+ struct image_header *header)
+{
+ int err;
+
+ /* Read for a header, parse or error out. */
+ spi_flash_read(flash, CONFIG_SYS_SPI_KERNEL_OFFS, 0x40,
+ (void *)header);
+
+ if (image_get_magic(header) != IH_MAGIC)
+ return -1;
+
+ err = spl_parse_image_header(&spl_image, header);
+ if (err)
+ return err;
+
+ spi_flash_read(flash, CONFIG_SYS_SPI_KERNEL_OFFS,
+ spl_image.size, (void *)spl_image.load_addr);
+
+ /* Read device tree. */
+ spi_flash_read(flash, CONFIG_SYS_SPI_ARGS_OFFS,
+ CONFIG_SYS_SPI_ARGS_SIZE,
+ (void *)CONFIG_SYS_SPL_ARGS_ADDR);
+
+ return 0;
+}
+#endif
+
+static ulong spl_spi_fit_read(struct spl_load_info *load, ulong sector,
+ ulong count, void *buf)
+{
+ struct spi_flash *flash = load->dev;
+ ulong ret;
+
+ ret = spi_flash_read(flash, sector, count, buf);
+ if (!ret)
+ return count;
+ else
+ return 0;
+}
/*
* The main entry for SPI booting. It's necessary that SDRAM is already
* configured and available since this code loads the main U-Boot image
* from SPI into SDRAM and starts it from there.
*/
-void spl_spi_load_image(void)
+int spl_spi_load_image(void)
{
+ int err = 0;
struct spi_flash *flash;
struct image_header *header;
* Load U-Boot image from SPI flash into RAM
*/
- flash = spi_flash_probe(CONFIG_SPL_SPI_BUS, CONFIG_SPL_SPI_CS,
- CONFIG_SF_DEFAULT_SPEED, SPI_MODE_3);
+ flash = spi_flash_probe(CONFIG_SF_DEFAULT_BUS,
+ CONFIG_SF_DEFAULT_CS,
+ CONFIG_SF_DEFAULT_SPEED,
+ CONFIG_SF_DEFAULT_MODE);
if (!flash) {
puts("SPI probe failed.\n");
- hang();
+ return -ENODEV;
}
/* use CONFIG_SYS_TEXT_BASE as temporary storage area */
header = (struct image_header *)(CONFIG_SYS_TEXT_BASE);
- /* Load u-boot, mkimage header is 64 bytes. */
- spi_flash_read(flash, CONFIG_SYS_SPI_U_BOOT_OFFS, 0x40,
- (void *) header);
- spl_parse_image_header(header);
- spi_flash_read(flash, CONFIG_SYS_SPI_U_BOOT_OFFS,
- spl_image.size, (void *)spl_image.load_addr);
+#ifdef CONFIG_SPL_OS_BOOT
+ if (spl_start_uboot() || spi_load_image_os(flash, header))
+#endif
+ {
+ /* Load u-boot, mkimage header is 64 bytes. */
+ err = spi_flash_read(flash, CONFIG_SYS_SPI_U_BOOT_OFFS, 0x40,
+ (void *)header);
+ if (err)
+ return err;
+
+ if (IS_ENABLED(CONFIG_SPL_LOAD_FIT)) {
+ struct spl_load_info load;
+
+ debug("Found FIT\n");
+ load.dev = flash;
+ load.priv = NULL;
+ load.filename = NULL;
+ load.bl_len = 1;
+ load.read = spl_spi_fit_read;
+ err = spl_load_simple_fit(&load,
+ CONFIG_SYS_SPI_U_BOOT_OFFS,
+ header);
+ } else {
+ err = spl_parse_image_header(&spl_image, header);
+ if (err)
+ return err;
+ err = spi_flash_read(flash, CONFIG_SYS_SPI_U_BOOT_OFFS,
+ spl_image.size,
+ (void *)spl_image.load_addr);
+ }
+ }
+
+ return err;
}